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Cedar Hills

Other power plant · King County, Washington

Nameplate capacity

5.4 MW

Rank in Washington

#110

of 139 plants

In service since

2009

April 2009

Details

Primary fuel: Other
Technology: Landfill Gas
Operator: —
County: King County
Generating units: 18
Share of state capacity: 0.02%
Rank among other plants in Washington: #10 of 16
EIA plant code: 57298

Generating units

Individual generating units at Cedar Hills
Unit	Technology	Nameplate	Summer	Online	Status
1	Landfill Gas	0.3 MW	0.3 MW	2009	Operating
10	Landfill Gas	0.3 MW	0.3 MW	2009	Operating
11	Landfill Gas	0.3 MW	0.3 MW	2009	Operating
12	Landfill Gas	0.3 MW	0.3 MW	2009	Operating
13	Landfill Gas	0.3 MW	0.3 MW	2009	Operating
14	Landfill Gas	0.3 MW	0.3 MW	2009	Operating
15	Landfill Gas	0.3 MW	0.3 MW	2009	Operating
16	Landfill Gas	0.3 MW	0.3 MW	2009	Operating
17	Landfill Gas	0.3 MW	0.3 MW	2009	Operating
18	Landfill Gas	0.3 MW	0.3 MW	2009	Operating
2	Landfill Gas	0.3 MW	0.3 MW	2009	Operating
3	Landfill Gas	0.3 MW	0.3 MW	2009	Operating
4	Landfill Gas	0.3 MW	0.3 MW	2009	Operating
5	Landfill Gas	0.3 MW	0.3 MW	2009	Operating
6	Landfill Gas	0.3 MW	0.3 MW	2009	Operating
7	Landfill Gas	0.3 MW	0.3 MW	2009	Operating
8	Landfill Gas	0.3 MW	0.3 MW	2009	Operating
9	Landfill Gas	0.3 MW	0.3 MW	2009	Operating

Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.

Similarly sized plants in Washington

Coastal Energy Project	Wind	6.0 MW
Hancock Creek Hydroelectric Project	Hydro	6.0 MW
Camas Solar Project	Solar	5.0 MW
Penstemon Solar Project	Solar	5.0 MW

About this data

From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 5.4 MW solar plant and a 5.4 MW nuclear plant have the same entry here and produce very different amounts of electricity.

“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Washington power plants · What Washington actually generates